Klaine fans were agonizing over the news of Dave Karofsky's return to possibly break up the favorite couple on 'Glee'.

For weeks now, "Klaine" fans have been rattled by the news of Max Adler returning to "Glee" for the final season and breaking up the favourite couple on the show. However, show runners have given them some hope to calm down and rejoice with a little scoop on what happens to them in the final season.

Brad Falchuk, one of the co-creators of "Glee" told E! that a love story would certainly have obstacles before the happy ending. "It's 'Glee'.. Be Happy. Its's going to be okay," Falchuk reminds.

He added, "I've spent a year learning what they (fans) want. We have a list in the writers' room that says, 'What do the fans want to end that show?' And our endings are all very uplifting, and I think by the end of it, people will be ecstatic and really thrilled by how things turn out. I am."

The Hollywood Reporter said in August 2014 that the character of Dave Karofsky, played by Max Adler, would be brought back for the sixth and final season of "Glee". The homophobic-bully-turned-gay-guy, who was last seen in the 17th episode of the fifth season, will return for a storyline that romantically links him with the former Warbler captain half of "Klaine".

Following this, a lot of Gleeks have taken to Twitter and other social media platforms to express their anger and agony:

Hazel Stilinski had said, "I would rather gnaw my own arm off and beat myself to death with the soggy end", while Maria opined, "This is scarier than anything featured on American Horror Story".

Falchuk too admits to receiving many angry tweets over the plot twist: "I have a lot of angry tweets. But look, it's a new season and we're exploring some stuff. We love Kurt. We love Blaine. We love them together. We love them apart. We love them all kinds of ways. And I think that their relationship is a really great place to explore some more complicated stories. Really, it's going to be OK."

"Glee", which is slated for its final season in 2015, will air 13 episodes and Adler is supposed to appear in at least four of them. The final season will also see the return of Heather Morris, Naya Rivera, Dianna Agron and Mark Salling from members of the original cast.

"The final season is really its own story and its own location, and while the New York stuff will be alive, the final season is not New York-centric at all," Ryan Murphy, the co-creator of the show had revealed in August. "It really [will be] a lovely, fitting season that ... dwells on the original people that were on the show and what happens to them and how they give back... It's really interesting, a very sweet, satisfying ending to the story".